CN103343632B - Compact Iron Melt Transport System - Google Patents
Compact Iron Melt Transport System Download PDFInfo
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- CN103343632B CN103343632B CN201310300624.0A CN201310300624A CN103343632B CN 103343632 B CN103343632 B CN 103343632B CN 201310300624 A CN201310300624 A CN 201310300624A CN 103343632 B CN103343632 B CN 103343632B
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Abstract
The invention discloses a kind of compact Iron Melt Transport System, this Iron Melt Transport System comprises: blast furnace region (100), is provided with blast furnace (1), and the iron notch place of blast furnace (1) is provided with Molten Iron Transportation line (5); Steelshop (200), is provided with converter (7) and feeds in raw material across (11), and the Molten Iron Transportation line (5) in blast furnace region (100) extends into reinforced across (11); Transition, across (300), is positioned between blast furnace region (100) and steelshop (200), molten iron buffering when there is accident for steelshop (200); Blast furnace region (100), steelshop (200) and transition be arranged in parallel across (300), and are connected by Molten Iron Transportation line (5), and Molten Iron Transportation line (5) is arranged across (300) are vertical with transition with blast furnace region (100), steelshop (200).Smooth and easy, the total figure of compact Iron Melt Transport System technique of the present invention is compact, investment and running cost low, be applicable to newly-built Steel Complex.
Description
Technical field
The present invention relates to a kind of Iron Melt Transport System belonging to metallurgical technology technical field, particularly relate to a kind of compact Iron Melt Transport System comprising ironmaking-steel-making floor plan, Molten Iron Transportation, interface guarantee and tank body maintenance etc.
Background technology
As the linking buffering between blast furnace and converter and transition, Iron Melt Transport System not only comprises linking, coupling, the coordination of the basic parameters such as Commodity flow, energy flow, temperature, time and stablizes, and also comprises the aspects of contents such as operation, device, capacity, handling equipment, haulage track, management and running.
In Production Processes In Steel Industry, the undertaking, transport, storage etc. of molten iron to the transition of fish torpedo ladle or iron ladle (tank on earth) and evolution, embody the progress (comprising the indexs such as production efficiency, energy consumption, environmental protection) of Technology by " by iron flask+hot metal mixer ".But fish torpedo ladle still also exists the deficiencies such as investment is large, contaminate environment, tank switching temperature losses of the process are large, and be not suitable for hot metal pretreatment and the operation such as to skim.
" tank on earth " Molten Iron Transportation method, blast furnace is converted iron flask by iron flask and steel-making unite two into one, with same iron ladle complete blast-melted undertaking, transport, buffer storage, pre-treatment, converter convert the whole processes such as iron, container turnover and hot-metal insulating technique, eliminate the fish torpedo ladle in traditional mode of production or hot metal mixer, decrease molten iron secondary tank switching, save the Molten Iron Transportation time, reduce hot metal temperature drop, decrease the environmental pollution because tank switching causes, being conducive to realizing cleaner production, is the developing direction at iron steel interface.
Here is several " tank the is on earth " pattern run at present:
(1) " locomotive " pattern
The iron steel interface that major part " tank on earth " is transported is transformed by legacy system, still based on locomotive, such as: Handan Iron and Steel Co, Sha Gang, Ling Gang, Anshan iron and steel plant etc.This mode relies on transportation by railroad, depends on the relative stability of blast furnace operating and converter, although eliminate hot metal mixer or fish torpedo ladle, but shortcoming is obvious: 1) blast furnace still adopts half traditional island to arrange, total figure takes up an area comparatively large, and need to establish between proprietary locomotive repair and between cast iron etc., to invest larger; 2) distance via railway is far away, and iron ladle still needs marshalling transport, and the waiting time is longer, does not fundamentally solve the shortcoming large with Molten Iron Transportation temperature drop of tapping a blast furnace.
(2) " straddle carrier+reinforced inter-bank car " pattern
In this pattern, within the part by iron flask travel line of blast furnace is placed in the working range that reinforced inter-bank car covers, after containing iron under ironmaking casting house by straddle carrier deliver to reinforced across.If establish the corresponding steelshop of two blast furnaces, then the Molten Iron Transportation line of blast furnace interconnects, and reinforced amphi-position between two blast furnaces.The shortcoming of this pattern: 1) because Molten Iron Transportation line perpendicular to reinforced across, and reinforced amphi-position between blast furnace, therefore blast furnace quantity can not more than two; 2) reinforced across much larger than steelshop other across length, once invest larger; 3) if converter capacity is less, required iron ladle increases, then reinforced across crane serious interference.4) blast furnace is positioned at converter sidepiece, and the total distance (converting the distance between iron from blast furnace casting to converter) of Molten Iron Transportation is still very long, and total figure floor space is still larger.
(3) " hot-metal ladle and carriage+ladle carne+ferry bus " pattern
After blast furnace casting, hot-metal ladle and carriage move to transition across, by transition across lifting machine iron ladle is transported to ferry-boat line, ferry bus move to steelshop reinforced across.The shortcoming of this pattern: 1) because every tank iron ladle all need be transported across interior in transition, therefore need the lifting machine of greater amt, once invest larger; 2) to have bad luck number of times more for iron ladle, and running cost is higher; 3) extend Molten Iron Transportation time and slack tank time of return, temperature drop is larger.
(4) " hot-metal ladle and carriage " pattern
It is reinforced across layout that blast furnace is parallel to converter, tapped a blast furnace by the mode being similar to locomotive marshalling, after tapping a blast furnace, directly iron ladle is transported to steelshop reinforced across, this pattern decreases iron ladle and has bad luck, a limited investment, and running cost reduces.But, 1) and this pattern will feed in raw material across as iron ladle directorial area, become the weak link in whole flow process; 2) iron ladle time of return is shorter, iron steel interface too rigidity, and surge capability is not enough.3) when blast furnace iron notch number>=3, reinforced across span cannot enter 6 Molten Iron Transportation lines (6 supply line needs the distance of at least 50 meters), so the blast furnace heat size of the pattern of kind is only limitted to < 2500m
3.
Summary of the invention
The object of the present invention is to provide a kind of operational defect that effectively can make up existing Molten Iron Transportation mode, optimize the technical process at iron steel interface, simplify the middle-chain at iron steel interface, shorten flow process, thus reach smooth and easy, the total figure of technique compact, reduce investment and running cost, be applicable to the compact Iron Melt Transport System of newly-built Steel Complex.
For achieving the above object, the concrete technical scheme of a kind of compact Iron Melt Transport System of the present invention is:
A kind of compact Iron Melt Transport System, comprising: blast furnace region, is provided with blast furnace, the iron notch place of blast furnace is provided with Molten Iron Transportation line; Steelshop, be provided with converter and reinforced across, the Molten Iron Transportation line in blast furnace region extend into reinforced across; Transition across, between blast furnace region and steelshop, molten iron buffering when there is accident for steelshop; Blast furnace region, steelshop and transition across be arrangeding in parallel, and are connected by Molten Iron Transportation line, and Molten Iron Transportation line and blast furnace region, steelshop and transition are across vertical setting.
Compared with traditional " tank is on earth " technology, compact Iron Melt Transport System of the present invention has following advantage:
(1) the present invention with Commodity flow rationally and the time flow compact serving as theme, angularly consider from economy and technology, the total figure having overturned original iron steel interface arranges, realize the series connection of " iron-steel-roll " straight line, the main body that furthered and public affairs additionally arrange standby between distance, greatly save and always scheme to take up an area, reduce and once invest;
(2) by vertically to enter steelshop feed in raw material across Molten Iron Transportation line, iron ladle directly transport reinforced across, have bad luck without any centre, and only arrange hot metal pretreatment between converter, decrease crane distance travelled, and the shipment distance of iron ladle is the shortest, reduces once investment and running cost.Simplify Molten Iron Transportation mode, highly shortened shipment distance, accelerate the turnaround speed of iron ladle, improve molten iron charging temperature, energy-saving effect is obvious; Improve serialization degree to 69.5%;
(3) by transition across the molten iron intercommunication realized between many blast furnaces and multiple converter smelting region, molten iron allotment is more flexible, and provides a channels in series for cast iron, is aided with tank body for subsequent use, provides safe changeable interface safeguards;
(4) shorten haul distance and the handling number of times of tank body maintenance, and shipment distance is the shortest, ladle can be transported into transhipment step into row cold repair, tank body is keeped in repair more concentrate and rationally, decrease iron ladle quantity, meet energy-saving and cost-reducing general orientation.
Accompanying drawing explanation
Fig. 1 is the plot plan of compact Iron Melt Transport System of the present invention;
Fig. 2 is the plot plan of another embodiment of compact Iron Melt Transport System of the present invention.
Embodiment
In order to better understand object of the present invention, structure and function, below in conjunction with accompanying drawing, further detailed description is done to a kind of compact Iron Melt Transport System of the present invention.
As shown in Figure 1, it illustrates the plot plan of compact Iron Melt Transport System of the present invention.In the present embodiment, compact Iron Melt Transport System comprises blast furnace region 100, steelshop 200, and the transition between blast furnace region 100 and steelshop 200 is across 300, blast furnace region 100, steelshop 200 and transition be arranged in parallel across 300, and be connected by Molten Iron Transportation line 5, and Molten Iron Transportation line 5 is vertical across 300 with transition with blast furnace region 100, steelshop 200 respectively.It should be noted, the present embodiment is the corresponding steelshop of two blast furnaces in blast furnace region.
Wherein, blast furnace 1 and affiliated facility thereof is provided with in blast furnace region 100, as shown in Figure 1, two blast furnaces 1 are provided with in the blast furnace region 100 of the present embodiment, each blast furnace 1 is provided with two iron notch (not shown), two iron notchs are all positioned at the same side of blast furnace 1, and each iron notch place respectively correspondence be provided with an oscillating chute 2, oscillating chute 2 place arranges iron ladle 4, to accept the molten iron in blast furnace 1.In addition, the both sides of oscillating chute 2 are provided with Molten Iron Transportation line 5, Molten Iron Transportation line 5 extends into steelshop 200 and transition across 300, and the hot-metal ladle and carriage 3 transporting iron ladle 4 is seated on Molten Iron Transportation line 5, for the molten iron in blast furnace 1 is transported to steelshop 200.
See Fig. 1, be provided with converter 7 and reinforced across 11 in steelshop 200, the Molten Iron Transportation line 5 in blast furnace region 100 vertically enters reinforced across in 11, for the molten iron in iron ladle 4 is had bad luck without any centre directly transport reinforced across 11.It should be noted, reinforced preferably equal with the length of steelshop 200 across the length of 11 in the present embodiment, to facilitate the transport of iron ladle 4 in steelshop 200 and other relating operations.In the present embodiment Molten Iron Transportation line vertically enter reinforced across, facilitate, between blast furnace region 100 and steelshop 200, transition be set across 300, decrease total figure and take up an area and the reinforced handling distance across interior iron ladle.
Further, in steelshop 200, be provided with hot metal pretreatment station 6, hot metal pretreatment station 6 converter 7 and extend into reinforced across 11 in Molten Iron Transportation line 5 between, carry out pre-treatment for the molten iron transported Molten Iron Transportation line 5.In addition, also can be provided with the heavy tank position 8 of molten iron and dry slag glues iron clearing zone 12 in steelshop 200, wherein, the centre that the heavy tank position 8 of molten iron is mainly used in half tank molten iron is had bad luck or accident buffering; Dry slag glues iron clearing zone 12 then for processing the sticky iron dry slag on iron ladle 4.
Still see Fig. 1, transition between blast furnace region 100 and steelshop 200 across 300 in be provided with pig-casting machine 9 and the heavy tank position 8 of molten iron, transition mainly plays the effect of molten iron buffering across the pig-casting machine 9 in 300 and the heavy tank position 8 of molten iron when accident appears in steelshop 200.In addition, transition also can be provided with tank body maintenance area 13 in 300, repair to carry out concentrating to the empty iron ladle 4 returning blast furnace 1 in transition is across 300, and the Molten Iron Transportation line 5 being positioned at steelshop 200 in the present embodiment may extend to converter 7 place, keep in repair across the tank body maintenance area 13 in 300 the ladle (not shown) at converter 7 place is also transported to transition by Molten Iron Transportation line 5.It is understood, of course, that the dry slag be arranged in steelshop 200 glues iron clearing zone 12 also can be arranged on transition across in 300, to focus on iron ladle 4.
Below with reference to Fig. 1, brief description is carried out to the operating procedure of the compact Iron Melt Transport System of the present embodiment:
When steelshop 200 is normally produced.First, molten iron outputs in the iron ladle 4 of oscillating chute 2 from the iron notch of the blast furnace 1 in blast furnace region 100, the iron ladle 4 filling molten iron by Molten Iron Transportation line 5 be directly transported to steelshop 200 reinforced across in 11, middlely to have bad luck without any;
Secondly, be transported to steelshop 200 reinforced across the iron ladle 4 in 11 by carrying out pre-treatment in crane (not shown) handling to hot metal pretreatment station 6, molten iron is after the pre-treatment of hot metal pretreatment station 6, be blended in converter 7 by crane, if and molten iron does not need pre-treatment, then can directly be blended in converter 7 by crane;
Finally, the empty dry slag of iron ladle 4 in steelshop 200 glues in iron clearing zone 12 and carries out dry slag and glue iron cleaning, the iron ladle 4 cleaned out by crane handling on Molten Iron Transportation line 5, and the iron notch position of the blast furnace 1 in blast furnace region 100 is returned to together with hot-metal ladle and carriage 3, align rear wait to tap a blast furnace next time, if and need iron ladle 4 be keeped in repair, then can iron ladle 4 return way in the tank body maintenance area 13 of transition across 300, centralized maintenance is carried out to iron ladle 4.
And when occurring industrial accident in steelshop 200, when temporarily can not process molten iron, by Molten Iron Transportation line 5 by hot metal transport to transition between blast furnace region 100 and steelshop 200 across 300 in, and carried out molten iron process by transition across the pig-casting machine 9 in 300 or carry out temporary buffer in the heavy tank position 8 of molten iron, the transport of iron ladle 4 in transition is across 300 realizes by lifting machine 10.
It should be noted, in the present embodiment, each blast furnace 1 place is provided with 3 Molten Iron Transportation lines, also namely two iron notchs of blast furnace 1 tap a blast furnace respectively in the iron ladle 4 on 3 Molten Iron Transportation lines 5, as can be known from Fig. 1, article 3, Molten Iron Transportation line 5 be arranged in parallel, the iron notch of the respective corresponding blast furnace of Molten Iron Transportation line 5 difference of both sides, the Molten Iron Transportation line 5 of centre is then that two iron notchs share.In the present embodiment, every bar Molten Iron Transportation line is provided with two hot-metal ladle and carriages 3, every platform hot-metal ladle and carriage 3 is placed with an iron ladle 4, each iron notch of blast furnace 1 can tap a blast furnace 12 times every day, tap a blast furnace four tanks at every turn, by the mode of tapping a blast furnace adopting above-mentioned iron notch to share Molten Iron Transportation line, effectively can reduce the Molten Iron Transportation line quantity entering steelshop, reduce floor space, be conducive to realizing Molten Iron Transportation line vertically enter reinforced across.
Certainly, the quantity of the iron notch of the blast furnace 1 in the present embodiment is not limited to two, and corresponds to different iron notch quantity, and the quantity of the Molten Iron Transportation line 5 arranged near blast furnace 1 in the present embodiment also can be arranged flexibly, specific as follows:
(1) blast furnace iron notch quantity 1, joins 2 Molten Iron Transportation lines;
(2) blast furnace iron notch quantity 2, joins 3 Molten Iron Transportation lines;
(3) blast furnace iron notch quantity is greater than 2, joins 3 Molten Iron Transportation lines and ferry-boat line.
Ferry-boat line can be arranged on the side of Molten Iron Transportation line, so that by the iron ladle handling of directly not transporting by Molten Iron Transportation line to ferrying on line, and being transported to steelshop by ferry-boat line, the form that specifically arranges of ferry-boat line can see the pattern of ferry-boat line conventional in prior art.
In addition, the hot-metal ladle and carriage 3 in the present embodiment drives separately for every platform, and type of drive can be diesel engine unit and drives, and hot-metal ladle and carriage 3 also can arrange weighing system, strictly to control the weight of every tank molten iron.Thus, compact Iron Melt Transport System of the present invention, when tapping a blast furnace, strictly controls out iron by the weighing system on hot-metal ladle and carriage 3, makes precision controlling in ± 1t, for steel-making provides stable molten iron.
Compact Iron Melt Transport System of the present invention saves always schemes to take up an area, shorten shipment distance, and improve the turnover frequency of iron ladle, decrease molten iron and have bad luck number of times, improve molten iron charging temperature, energy-saving effect is obvious; And reduce once investment and running cost, provide safe interface safeguards, reduce tank body maintenance cost.
Fig. 2 shows the plot plan of another embodiment of compact Iron Melt Transport System of the present invention.In the present embodiment, corresponding two steelshops of two blast furnaces in blast furnace region.Specifically, compact Iron Melt Transport System in the present embodiment also comprises blast furnace region 100, steelshop 200, and the transition between blast furnace region 100 and steelshop 200 is across 300, blast furnace region 100, steelshop 200 and transition be arranged in parallel across 300, and be connected by Molten Iron Transportation line 5, and Molten Iron Transportation line 5 vertically to be arranged across 300 with blast furnace region 100, steelshop 200 and transition respectively.
As shown in Figure 2, in the present embodiment, two steelshops 200 are set up in parallel, two blast furnaces 1 in blast furnace region 100 respectively with two steelshop 200 one_to_one corresponding.Specifically, each blast furnace 1 in blast furnace region 100 is provided with two iron notch (not shown), two iron notchs are positioned at the same side of blast furnace 1, and each iron notch place respectively correspondence be provided with an oscillating chute 2, oscillating chute 2 place arranges iron ladle 4, to accept the molten iron in blast furnace 1.The both sides of oscillating chute 2 are provided with Molten Iron Transportation line 5, Molten Iron Transportation line 5 extends into transition across 300 and the steelshop 200 corresponding with this blast furnace 1, the hot-metal ladle and carriage 3 transporting iron ladle 4 is seated on Molten Iron Transportation line 5, for the molten iron in blast furnace 1 is transported to corresponding steelshop 200.
The steelshop 200 of the present embodiment and transition are similar to the first embodiment across the arrangement form in 300.Converter 7 and feed in raw material across 11 identical with steelshop 200 length is all included in two steelshops 200, it is reinforced across in 11 that Molten Iron Transportation line 5 vertically enters steelshop 200, converter 7 and extend into reinforced across 11 in Molten Iron Transportation line 5 between be provided with hot metal pretreatment station 6, according to practical situation, the heavy tank position 8 of molten iron also can be provided with in steelshop 200 and dry slag glues iron clearing zone 12.
And the transition of the present embodiment is also provided with the heavy tank position 8 of molten iron accordingly in 300, pig-casting machine 9 and tank body maintenance area 13, but with in the first embodiment unlike, in the present embodiment, owing to being that multiple blast furnace 1 is for multiple steelshop 200, and the Molten Iron Transportation line 5 between often pair of blast furnace 1 and steelshop 200 all passes perpendicularly through same transition across 300, so often pair of blast furnace 1 in the present embodiment and steelshop 200 can realize being interconnected across 300 by transition, also be, molten iron in different blast furnace 1 can be transported to each steelshop 200 by transition across 300, thus achieve multiple blast furnace and multiple steelshop is connected as a single entity, larger buffering is provided for the production of iron steel interface is unbalanced, it should be noted, the transhipment of iron ladle 4 in transition is across 300 realizes by lifting machine 10.
Certainly, although illustrate only the situation of corresponding two steelshops of two blast furnaces in the present embodiment, but be not limited to this, due to arrange between multiple blast furnace and multiple steelshop same transition across, therefore the blast furnace in the present invention can set according to practical situation flexibly with the concrete corresponding situation of steelshop, three steelshops as corresponding in three blast furnaces, four corresponding three steelshops of blast furnace etc.
Compact Iron Melt Transport System of the present invention provides a kind of molten iron safeguards when producing imbalance, by transition across, many blast furnaces and multiple steelshop are connected as a single entity, when a steelshop is because of Converter Maintenance or when not needing molten iron because of accident, utilize transition across interior lifting machine by molten iron handling to another one steelshop, or carry out cast iron to solve unnecessary molten iron by slack tank and pig-casting machine, transition is across interior layout heavy tank position and roaster etc., and can pig-casting machine and iron ladle etc. be shared in this system, concentrate tank body maintenance, decrease the quantity of pig-casting machine and iron ladle.And the Molten Iron Transportation line in the present invention vertically enter reinforced across, solve axial transport cannot laterally enter because supply line is many reinforced across problem.
Further describe invention has been by specific embodiment above; but it should be understood that; here concrete description; should not be construed as the restriction to the spirit and scope of the invention; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the present invention protects after reading this specification.
Claims (10)
1. a compact Iron Melt Transport System, is characterized in that, comprising:
Blast furnace region (100), is provided with blast furnace (1), and the iron notch place of blast furnace (1) is provided with Molten Iron Transportation line (5);
Steelshop (200), is provided with converter (7) and feeds in raw material across (11), and the Molten Iron Transportation line (5) in blast furnace region (100) extends into reinforced across (11);
Transition, across (300), is positioned between blast furnace region (100) and steelshop (200), molten iron buffering when there is accident for steelshop (200);
Blast furnace region (100), steelshop (200) and transition be arranged in parallel across (300), and are connected by Molten Iron Transportation line (5), and Molten Iron Transportation line (5) is arranged across (300) are vertical with transition with blast furnace region (100), steelshop (200).
2. compact Iron Melt Transport System according to claim 1, it is characterized in that, multiple blast furnace (1) is provided with in blast furnace region (100), multiple blast furnace (1) is connected with multiple steelshop (200) by Molten Iron Transportation line (5), transition is provided with molten iron transporter across in (300), and the molten iron in blast furnace (1) can be delivered to arbitrary steelshop (200) by transition across the molten iron transporter in (300).
3. compact Iron Melt Transport System according to claim 1 and 2, is characterized in that, transition is across the pig-casting machine (9) be provided with in (300) for molten iron buffering and the heavy tank position (8) of molten iron.
4. compact Iron Melt Transport System according to claim 1, is characterized in that, reinforced equal with the length of steelshop (200) across the length of (11), and Molten Iron Transportation line (5) vertically enters reinforced across in (11).
5. compact Iron Melt Transport System according to claim 4, it is characterized in that, be provided with hot metal pretreatment station (6) in steelshop (200), hot metal pretreatment station (6) are arranged in converter (7) and enter between the reinforced Molten Iron Transportation line (5) across (11) with vertical.
6. compact Iron Melt Transport System according to claim 5, is characterized in that, is provided with the heavy tank position (8) of molten iron for molten iron buffering in steelshop (200).
7. compact Iron Melt Transport System according to claim 1, it is characterized in that, the iron notch place of blast furnace (1) is provided with oscillating chute (2), oscillating chute (2) place arranges iron ladle (4), the both sides of oscillating chute (2) are provided with Molten Iron Transportation line (5), and the hot-metal ladle and carriage (3) transporting iron ladle (4) is seated on Molten Iron Transportation line (5).
8. compact Iron Melt Transport System according to claim 7, is characterized in that, transition is across the tank body maintenance area (13) be provided with in (300) for keeping in repair iron ladle (4).
9. compact Iron Melt Transport System according to claim 8, it is characterized in that, Molten Iron Transportation line (5) in steelshop (200) is extended to converter (7) place, keeps in repair across tank body maintenance area (13) place in (300) for the ladle at converter (7) place is transported to transition by Molten Iron Transportation line (5).
10. compact Iron Melt Transport System according to claim 9, is characterized in that, steelshop (200) or transition glue iron clearing zone (12) across the dry slag being provided with cleaning iron ladle (4) in (300).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105170965A (en) * | 2015-11-02 | 2015-12-23 | 中冶东方工程技术有限公司 | Molten iron transport system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105238891A (en) * | 2015-10-20 | 2016-01-13 | 北京首钢国际工程技术有限公司 | Direct connection type process for iron making and steel making interface |
| CN112059163A (en) * | 2020-09-19 | 2020-12-11 | 北京首钢国际工程技术有限公司 | Molten iron transportation system of iron-making-steel interface |
| CN114934141A (en) * | 2022-05-09 | 2022-08-23 | 北京首钢国际工程技术有限公司 | Smelting system |
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| CN101249558A (en) * | 2008-03-28 | 2008-08-27 | 重庆钢铁(集团)有限责任公司 | One tank to end technique for iron-smelting to steel-smelting |
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